Check your property to get zoning info & price quotes for ADU feasibility & design services:
City Hint: The city has not yet responded to requests for ADU permit volumes for the past year, but they will be provided here once response has been received.
Number of ADUs allowed:
One ADU per one primary unit.
AB68 & AB881 Update: Properties which convert existing space to create ADUs may be eligible for one ADU -AND- one JADU.
Types of ADUs allowed:
Attached, detached and junior ADUs allowed.
Per state minimum requirements.
AB68 & AB881 Update: Properties will not be subject to minimum lot standards by ordinance or of the applicable zoning district.
Maximum size of living space is 800 square feet for lots under 10,000 square feet and 1,200 square feet for lots over 10,000 square feet.
AB68 & AB881 Update: Properties will be allowed up to 850 square feet for a one bedroom or up to 1,000 square feet for a two bedroom ADU.
Setbacks are determined by the standards of the underlying zone.
AB68 & AB881 Update: The maximum required setback for a detached new construction ADU shall be no more than 4 feet from the rear or side property lines.
Parking for accessory dwelling unit is not required when converting an existing structure.
One additional off-street parking space shall be provided, if the principal dwelling unit has less than the minimum off-street parking spaces for the applicable residential zoning district in which it is located, as required in Chapter 19.124 unless the unit meets the following requirements:
a. Is within one-half (1/2) mile of a public transit stop; or
b. Located in an architecturally and historically significant historic district; or
c. Occupant of the ADU is not allowed/
offered a required on-street parking permit; or
d. Located within one block of a car share vehicle pick-up location.
If spaces are lost due to the construction of an ADU, they are required to be replaced.
AB68 & AB881 Update: Properties which convert an existing garage will not be subject to replacement parking requirements.
Per state minimum requirements.
Shape, materials and style:
Proposed architecture, colors, materials, etc. must be consistent with the main house.
Second-story accessory dwelling units are allowed if the unit: 1. Is a conversion of existing second story portions of the principal dwelling unit; and 2. Complies with applicable landscape requirements to adjoining dwellings consistent with Section 19.28.120 Not allowed for detached ADUs.
Ministerial review process per state standards.
Number of Bedrooms:
Not specified by State Standards.
Unit is not intended for sale separate from the primary residence and may be rented. (State requirements)
SB13 Update: Owner-occupancy requirements for ADUs will be voided statewide for 5 years.
Local health officer approval where a private sewage disposal system is being used, if required. (State requirements)
SB13 Update: Local impact fees for ADUs will be reduced substantially statewide.
Must have direct outside access without going through the principal dwelling and entrance must be screened from a public street.
ADU Manual / Guide
Residential Building Code:
The California Building Code (CBC) 2016 without amendments is adopted.
Cupertino Planning & Zoning
10300 Torre Ave, Cupertino, CA 95014 Cupertino, CA 95014
Use our ADU Services and Marketplace to get expert assistance, permit-ready ADU designs and on-site contractor estimates on one platform.
Fast and low cost ADU design services
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Read Cupertino Housing Market Update
City Council loosens rules for accessory dwelling units https://www.mercurynews.com/ 2017-12-28
Cupertino in-law units see ease in regulation - The Mercury News www.mercurynews.com 2016-10-31
Cupertino homeowners invited to attend workshop on accessory dwelling units http://cupertinotoday.com 2017-11-14
Customer since July, 2018
* upon completion of ADU
CONSTRUCTION COST ESTIMATE
* based on local average price per sqft
Appreciation Estimate = (Base Value: $) / (Home's Living Space: sqft) * (ADU's Living Space: sqft)
Rental Estimate = (Rent Per Sqft: $5.04) * (ADU's Living Space: sqft)
Our ADU Services and ADU Marketplace provide the fastest and lowest cost way to get started with your ADU project.
How does it work? Get started on your project with expert assistance and without commitment using our customized ADU Property and Design Reports as your first step. Then, get on-site visits from local contractors who can provide you with guidance and estimates for your ADU project.
Our Key Advantages
Compare all the costs and services in one place to find the best fit for your needs and budget
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Get started on your timeline and your terms, without commitment
The fastest and lowest cost way to get started with your ADU project
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Expert Feasibility & Zoning Research
Use our ADU Property & Design Reports as a starting point to plan your ADU project. Our experts will do the legwork with your city or county planning office and design custom ADU concepts for your property and your needs.
OPEN ADU MARKETPLACE
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Use our local contractor database to get on-site visits and cost estimates to compare services for your ADU project.
Getting your designs ready for city permitting and construction can speed up your ADU project and reduce unforseen costs later on in the process.